water without deformation, loss of light, fading and so on. The size of the bulk floor 4, dimensional stability has strict requirements. 5. Control the quality of low molecular weight volatiles in plastics. Because volatilization not only affects the quality of the floor, but also has an impact on human health.

The mass stability is controlled by 0 of the weight loss of 6h in the constant temperature blast oven at (100 + 3) centigrade. Less than 5% is qualified. 6, wear resistance, wear resistance is one of the important performance indicators of the floor. People with high flow rate must choose materials with good wear resistance.